What is the advantage of using the %ROWTYPE datatype?

• A. It is useful to retrieve an entire row from a table. If you do not use the %ROWTYPE datatype, then you have to declare variables for each column separ
• B. It can be used even if data type of the table columns is not known.
• C. It ensures that data type of the variable changes dynamically if the underlying table is altered.
• D. All mentioned above
• E. Both A & B